Science

Sunday, 23 November 2025
13 facts about tears
13 facts about tears
Multipurpose liquid
Associated with emotions, tears are a product of lacrimal glands, found in the eyes of most terrestrial vertebrates. Although their primary function i ...

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Silver
Pure high-quality silver contains at least 99.9 percent of this metal.
Purity levels above 99.999 percent can also be found.
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Cosmos
The next stage was the Dark Ages and the formation of large cosmic structures.
This period lasted from 370 thousand to 1 billion years after the Big Bang. During this time, matter ...
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Earth
The largest tectonic plate is the Pacific one, covering an area of 103 million square kilometers.
Most of the plate is submerged under the ocean, the land area of the Pacific plate is only a part of ...
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Large Magellanic Cloud
The mass of the Large Magellanic Cloud is estimated at 10 billion solar masses, which is about a hundred times less massive than the Milky Way.
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Large Magellanic Cloud
One of the largest globular clusters in the galaxy is NGC 1783.
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Cosmos
Jupiter is the largest planet in the Solar System.
This gas giant is made up of 90 percent hydrogen and about 10 helium. The diameter of Jupiter is 139 ...
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Moon
The surface of the Moon is littered with impact craters because it does not have an atmosphere thick enough to destroy pieces of rock heading towards it.
The largest crater on its surface is the South Pole-Aitken Basin, it is 2500 km in diameter and 13 km deep.
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Silver
Silver is also used in medicine. Its healing properties were already described by Hippocrates.
Its importance in medicine lies in the use of strong antibacterial properties. Before antibiotics were available, silver compounds were used to prevent infections during World War I.
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Tears
The human eye produces up to about 115 liters of tears annually.
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Graphene
Polish science contributed to the discovery and revolutionization of graphene production methods.
The key date is 2011 when the Institute of Electronic Materials Technology together with the Faculty ...
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17 facts about Titan
17 facts about Titan
The largest of Saturn’s satellites
Titan is the only moon in the Solar System with such a dense atmosphere. It is the second largest moon in the Solar System after Ganymede (Jupiter III ...
18 facts about amber
18 facts about amber
Fossilized tree resin
Amber is one of the most interesting natural products. It looks like a gemstone, but it is a fossilized tree resin from ancient trees dating back mill ...
16 facts about liver
16 facts about liver
24/7 laboratory
The liver is one of the most essential human organs. It is extensively multitasking—it produces, filtrates, converts, and stores. It is thanks to the ...
29 facts about NASA
29 facts about NASA
For the Benefit of All
The Cold War, although a grim period in world history, brought an intense rivalry in a space race between the U.S., and the Soviet Union. As a result, ...
16 facts about Aurora
16 facts about Aurora
Northern light that has delighted people for centuries
Auroras can be different. Sometimes it is bright and dancing, shimmering with different colors, sometimes it appears still. It has always fascinated p ...
19 facts about Brain
19 facts about Brain
Organic supercomputer
The brain is one of the most important and most fascinating and complex organs in the human body. It is an incredibly plastic command center that over ...
16 facts about Phobos
16 facts about Phobos
The larger of two moons of Mars
We do not know the exact origin of this satellite. We know, however, that it is dangerously close to its planet and is in for a catastrophe. It is not ...
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